972712555 has 8 divisors (see below), whose sum is σ = 1174986144. Its totient is φ = 773016000.

The previous prime is 972712547. The next prime is 972712561. The reversal of 972712555 is 555217279.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 972712555 - 2³ = 972712547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643426 + ... + 644935.

It is an arithmetic number, because the mean of its divisors is an integer number (146873268).

Almost surely, 2^972712555 is an apocalyptic number.

972712555 is a deficient number, since it is larger than the sum of its proper divisors (202273589).

972712555 is a wasteful number, since it uses less digits than its factorization.

972712555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288517.

The product of its digits is 220500, while the sum is 43.

The square root of 972712555 is about 31188.3400488067. The cubic root of 972712555 is about 990.8201736470.

The spelling of 972712555 in words is "nine hundred seventy-two million, seven hundred twelve thousand, five hundred fifty-five".